Never have to ask someone for a jump again or be stranded on the side of the road when your vehicle battery is dead. Throw away those old jumper cables! The RAMPAGE® Portable Car Battery Jumper And Power Bank is what you absolutely must have in your vehicle. On a full charge, the 8,000 mAh battery power bank can jump a vehicle approximately 20 times and it will retain a charge for approximately six months. However, it is suggested that you charge it about every three months. You can also use the included USB multi-head cable to charge a variety of electronics including smart phones, tablets and cameras. On a full charge, the power bank will juice up a smart phone three times and it takes about an hour to charge it fully. The sleek white power bank has a jump start socket, USB port and 12V input port, plus an LED light with three modes. Blue indicator lights on the top show the capacity of the power bank in increments of 0%, 10%, 25%, 50%, 75% and 100%. The kit includes a home adapter plug and a car adapter plug to charge the power bank and the battery clamps with jumper cables. The entire car battery jumper and power bank kit fits into a sturdy, rectangle zippered canvas case with a wrist lanyard. The RAMPAGE® Portable Car Battery Jumper and Power Bank makes a great gift for a high school graduate, someone who travels for work or that hard to gift person.